Lerence Ray

• Username: 5★lerence1201
• Country:  China
• Student/Professional:Student
• Institution:University of Science and Technology of China
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 12

Current Ratings Graph Old Ratings Graph

2043 (-13)RatingProvisional
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July Challenge 2016(2016-07-13 15:00:00)

Global Rank:   910

Cheated in:   

Ratings System Update

(2016-07-13 15:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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2043 (+95)RatingProvisional
Rating i Provisional Rating, click to know more

July Challenge 2016(2022-12-20 00:00:00)

Global Rank:   910

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (12)

August Lunchtime 2013

Pairwise AND sum

February Challenge 2014

Draughts, Colored Array, Little Elephant and Subarrays, Make Him Happy, Longest Common Pattern

March Challenge 2014

Team Split, Binary Tournament, Walk, Little Chef and Numbers, Mike and Stamps

April Challenge 2014

Cards, bags and coins, Shortest Path in Binary Trees, Divide the Tangerine, Chef and Digits, Farmer Feb, Counting Matrices

June Challenge 2014

Chef and Digit Jumps, Chef and Subarray, Guessing Game, Forgot Password

December Challenge 2014

Chef and Apple Trees, XOR with Subset

June Lunchtime 2014

Coprime Triples, The Smallest Pair

July Lunchtime 2014

Lowest Common Ancestor

August Lunchtime 2014

Harrenhal

January Challenge 2015

Xor Queries, Gcd Queries, One Dimensional Kingdoms, Sereja and Votes, Chef and Stones, Chef and A Large Permutation, Sereja and Number Division 2, Queries on the String

February Challenge 2015

Chef and Chain, Time to Study Graphs with Chef, Chef and Strange Formula, Chef and Strings, Let us play with rank list, Chef and Equality

July Challenge 2016

Andrash and Stipendium, Chef and Tetris, Chef and Robots Competition, Chefland and Electricity

Total Problems Solved: 65